Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://cctraff.ru/aws?keyword=adda247+daily+current+affairs+pdf In PDF document text

  • https://fiwisiroveton.weebly.com/uploads/1/3/4/3/134339953/nozukumisofowupot.pdfIn PDF document text
  • https://luwamagol.weebly.com/uploads/1/3/4/3/134375262/ce7aea.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007007.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007007.bin)
  • https://uploads.strikinglycdn.com/files/f821f323-8103-40cf-b83d-4b7c37001f69/73905728440.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4c1d1b19-7718-43af-88b4-cc30f6a9d321/corel_family_and_friends.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/95edb672-7b8d-430b-b061-60385ae07b42/just_ella.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6487ce00-150f-4996-bf62-1ae41b5174b7/91137738678.pdfIn PDF document text
  • https://s3.amazonaws.com/jixerubowi/alif_novel_episode_3_complete_download.pdfIn PDF document text
  • https://s3.amazonaws.com/wuniku/56300461030.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/628d2a30-4a6c-4062-8901-c52080798ef3/6481114407.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/80afdb95-350a-47d5-b98c-bbb43a7e3285/sabine_ulibarri_biografia.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b3b771c0-acd0-4228-9eb8-61f226936e55/lobuguzod.pdfIn PDF document text
  • https://s3.amazonaws.com/vuliwisuwig/atul_gawande_el_efecto_checklist.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/41686560224.pdfIn PDF document text
  • https://s3.amazonaws.com/sojaxub/doena_de_alzheimer_perfil_neuropsicologico_e_tratamento.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00007007.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000a979.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000a979.bin)

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